The Following Questions Refer to the Paragraph Below

question 79

Multiple Choice

The following questions refer to the paragraph below.
An elementary school science teacher decided to liven up the classroom with a salt-water aquarium. Knowing that salt-water aquaria can be quite a hassle, the teacher proceeded stepwise. First, the teacher conditioned the water. Next, the teacher decided to stock the tank with various marine invertebrates, including a polychaete, a siliceous sponge, several bivalves, a shrimp, several sea anemones of different types, a colonial hydra, a few coral species, an ectoproct, a sea star, and several gastropod varieties. Lastly, some vertebrates-a parrotfish and a clownfish-were added. She arranged for daily feedings of copepods and feeder fish.
-The clownfish and parrotfish died on the same day. Autopsies revealed the presence of many small, flat worms using tiny suckers to attach to the fish gills. Most likely, these worms were members of which phylum, and which class?

• A)Annelida, Hirudinea
• B)Annelida, Polychaetae
• C)Platyhelminthes, Cestoda
• D)Platyhelminthes, Monogenea
• E)Platyhelminthes, Turbellaria

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Definitions:

Seller

An individual or entity that offers a product or service for sale in the marketplace.

Advertising

The action of calling public attention to products, services, needs, etc., especially by paid announcements in print, broadcast, or online media.

Demand Curve

A graph representing the relationship between the price of a good and the quantity demanded by consumers, typically downward-sloping.

Brand Loyalty

The tendency of consumers to continuously purchase one brand's products over another's, often due to a combination of satisfaction with the product and the perceived value of the brand.